From 930589520128a5f25e65f9f923ac8dc6fac32ff8 Mon Sep 17 00:00:00 2001 From: Zhenzhong Duan Date: Wed, 5 Jun 2024 16:30:34 +0800 Subject: vfio/iommufd: Implement HostIOMMUDeviceClass::realize() handler It calls iommufd_backend_get_device_info() to get host IOMMU related information and translate it into HostIOMMUDeviceCaps for query with .get_cap(). For aw_bits, use the same way as legacy backend by calling vfio_device_get_aw_bits() which is common for different vendor IOMMU. Signed-off-by: Zhenzhong Duan Reviewed-by: Eric Auger Reviewed-by: Michael S. Tsirkin --- hw/vfio/iommufd.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/hw/vfio/iommufd.c b/hw/vfio/iommufd.c index e4a507d..1674c61 100644 --- a/hw/vfio/iommufd.c +++ b/hw/vfio/iommufd.c @@ -619,6 +619,35 @@ static void vfio_iommu_iommufd_class_init(ObjectClass *klass, void *data) vioc->pci_hot_reset = iommufd_cdev_pci_hot_reset; }; +static bool hiod_iommufd_vfio_realize(HostIOMMUDevice *hiod, void *opaque, + Error **errp) +{ + VFIODevice *vdev = opaque; + HostIOMMUDeviceCaps *caps = &hiod->caps; + enum iommu_hw_info_type type; + union { + struct iommu_hw_info_vtd vtd; + } data; + + if (!iommufd_backend_get_device_info(vdev->iommufd, vdev->devid, + &type, &data, sizeof(data), errp)) { + return false; + } + + hiod->name = g_strdup(vdev->name); + caps->type = type; + caps->aw_bits = vfio_device_get_aw_bits(vdev); + + return true; +} + +static void hiod_iommufd_vfio_class_init(ObjectClass *oc, void *data) +{ + HostIOMMUDeviceClass *hiodc = HOST_IOMMU_DEVICE_CLASS(oc); + + hiodc->realize = hiod_iommufd_vfio_realize; +}; + static const TypeInfo types[] = { { .name = TYPE_VFIO_IOMMU_IOMMUFD, @@ -627,6 +656,7 @@ static const TypeInfo types[] = { }, { .name = TYPE_HOST_IOMMU_DEVICE_IOMMUFD_VFIO, .parent = TYPE_HOST_IOMMU_DEVICE_IOMMUFD, + .class_init = hiod_iommufd_vfio_class_init, } }; -- cgit v1.1